Desserts
This cast iron skillet Reese's peanut butter cookie recipe delivers restaurant-quality cookies with a crispy, caramelized crust and gooey centers—all in one pan. The secret lies in cast iron's even heat distribution, which creates that perfect peanut-buttery flavor in every bite.
I developed this recipe after years of experimenting with skillet cookies, and it never fails to impress. What makes this recipe special is how the cast iron enhances the peanut butter and caramel flavors while creating a crispy edge that melts into a soft center.
You'll only need a few simple ingredients—peanut butter, brown sugar, eggs, and chocolate chips—and about 12 minutes in the oven. The cast iron retains heat beautifully, ensuring consistent results every time.
By the time these cookies emerge from the oven, you'll have golden, crackly edges with a warm, gooey center that's packed with peanut butter flavor and pockets of melted chocolate.
The aroma alone will have everyone gathering around the kitchen, and the texture is impossible to resist—crispy enough to hold its shape but soft enough to melt in your mouth. Serve warm with a scoop of vanilla ice cream or a glass of cold milk for the ultimate dessert experience.
The cast iron keeps them warm for minutes after baking, making them perfect for sharing. Let's get baking!
Ingredients for cast iron skillet reese's peanut butter cookie
Peanut butter, brown sugar, and chocolate chips—just a few ingredients for these showstopping cast iron cookies.
| Ingredient | Amount | Notes |
|---|---|---|
| Creamy Peanut Butter 🥜 | 1 cup | Natural, no added sugar preferred |
| Light Brown Sugar 🍚 | ¾ cup | Packed firmly, not lightly |
| Large Eggs 🥚 | 2 whole | Room temperature for best mixing |
| Vanilla Extract 🌿 | 1 tsp | Pure vanilla preferred |
| Baking Soda 🧂 | ½ tsp | Pure baking soda, not baking powder |
| Salt 🧂 | ¼ tsp | Fine sea salt preferred |
| Semisweet Chocolate Chips 🍫 | 1 cup | High-quality chips for best melt |
| Unsalted Butter 🧈 | ¼ cup | Melted, full-fat for richness |
| Caramel Bits 🍬 | ½ cup | Store-bought or homemade |
| Cast Iron Skillet 🍳 | 1 whole | 10-inch diameter, well-seasoned |
| Powdered Sugar 🍚 | 2 tbsp | For dusting, optional garnish |
The peanut butter is the star here, so Creamy (not crunchy) is a must—it blends smoother for that classic Reese's texture. Jif Natural or Smucker's are my go-tos, but any brand with no added sugar works. Brown sugar should be packed firmly, not scooped lightly. The chocolate chips? Ghirardelli or Guittard melt the best—they're worth the splurge. And that cast iron skillet? It's non-negotiable—season it well before using, or the cookies might stick. I always grab mine from Williams Sonoma if I'm upgrading, but any well-seasoned pan works.
No peanut butter? Sunflower seed butter is a solid swap, though the flavor won't be identical. Short on brown sugar? White sugar plus 1 tsp molasses mimics the caramel notes. Chocolate chips in a pinch? Chopped chocolate bars work, but they melt unevenly. The butter must be melted—microwave 40 seconds to just melt it, then stir until smooth. And if you're feeling fancy, swap half the chocolate chips for Reese's Pieces for that extra peanut-buttery crunch. The baking soda and salt are simple but essential—don't skip them!
These cookies stay warm in the cast iron for 10-15 minutes, so serve them straight from the pan. Store leftovers in an airtight container for 3 days at room temperature, or freeze for 1 month. I always double the batch—they disappear fast. For extra crunch, sprinkle powdered sugar on top right after baking. And trust me, the aroma alone will have your whole house smelling like a bakery.
Why You'll Love This Recipe
- One-Bowl Mix: Honestly, I swear by this—just toss everything into the skillet (peanut butter, sugar, egg, vanilla) and stir until it’s smooth. No measuring cups cluttering your counter, no extra bowls to wash. That rich peanut butter and brown sugar combo melts together like magic, and the baking soda gives it just enough lift to feel proper.
- Skillet Magic: Between us, cast iron makes these cookies next-level. The edges get that perfect crisp while the center stays gooey—like a Reese’s hug in every bite. The peanut butter’s deep, nutty flavor shines without overpowering, and the vanilla ties it all together. (Yes, even on a Tuesday night.)
- Party-Proof Portions: Here’s what sold me—these are easy to scale. Double the batch for a crowd, halve it for a quick snack, or freeze half for later. The skillet’s even heat means no burnt edges, so you can focus on chatting instead of babysitting the oven. My daughter picks out the biggest ones first, but I don’t blame her.
- Budget-Friendly Crunch: Light brown sugar and peanut butter are pantry staples that won’t break the bank, and eggs? Always cheap. You’re getting that decadent cookie taste for a fraction of what store-bought costs. Plus, leftovers last forever—if they even make it that far. (Not the prettiest, but the taste makes up for it.)
Step-by-step instructions for cast iron skillet Reese's peanut butter cookies
Here's how to create decadent, gooey peanut butter cookies with caramel crunch—all in one pan!
Preheat and Prepare the Cast Iron Skillet
Preheat your oven to 350°F and place the 10-inch cast iron skillet inside to heat for 5-10 minutes. This ensures the skillet is hot when the batter goes in, helping create those beautiful edges. While it preheats, melt the ¼ cup unsalted butter in a microwave-safe bowl in 30-second intervals, stirring between each, until completely smooth.
I like to add a light coating of butter to the warm skillet before pouring the batter—just a thin layer that melts instantly. This prevents sticking and adds a subtle richness to the cookies. The cast iron retains heat beautifully, so don't rush this step. You'll know it's ready when the skillet is evenly hot to the touch.
Mix the Cookie Batter
In a large bowl, combine the 1 cup creamy peanut butter, ¾ cup light brown sugar, and 2 whole large eggs at room temperature. Mix with a hand mixer or wooden spoon until completely smooth and well blended. The batter should be thick but pourable—like a rich peanut butter frosting.
Add the 1 teaspoon vanilla extract, ½ teaspoon baking soda, and ¼ teaspoon salt, mixing again until fully incorporated. Fold in the 1 cup semisweet chocolate chips and ½ cup caramel bits by hand using a spatula. You want to keep the chocolate and caramel pieces distributed evenly throughout the batter—don't overmix or they'll clump together.
Pour and Bake the Cookies
Quickly pour the batter into the preheated skillet and spread it evenly with a spatula, creating a ½-inch thick layer. Return the skillet to the oven and bake for 18-22 minutes, until the edges are golden brown and the center still looks slightly soft but firm to the touch.
Here's the thing—cast iron conducts heat differently than regular pans, so you'll need to watch closely. The cookies are done when they pull away slightly from the edges of the skillet and have a deep golden color. If the top browns too quickly, tent the skillet with aluminum foil to prevent over-browning while the center finishes cooking.
Cool and Finish
Remove the skillet from the oven and let the cookies cool in the pan for 5 minutes. This resting period helps them set properly before you transfer them. While they cool, dust a plate with the 2 tablespoons powdered sugar—this creates a beautiful, light finish that balances the richness of the peanut butter.
Using a sharp knife or offset spatula, carefully lift the cookies out of the skillet and place them on the powdered sugar. Let them cool completely before serving—this ensures clean slices and prevents the peanut butter from getting too soft. The cookies should have crisp edges, a soft center, and pockets of melted chocolate and caramel in every bite.
Serve and Enjoy
Slice the cookies into 8 equal wedges using a serrated knife dipped in hot water for clean cuts. Serve warm or at room temperature, and watch as everyone reaches for seconds. These cookies are perfect for sharing—each slice delivers that perfect balance of gooey peanut butter, crunchy caramel, and rich chocolate.
Pro tip: Store any leftovers in an airtight container at room temperature for up to 3 days, or freeze for up to 1 month. The flavors only get better as they sit! Pair with a glass of cold milk for the ultimate indulgence.
Pro Tips For Making Cast Iron Skillet Reese'S Peanut Butter Cookie
- Preheat Skillet Until Smoking: I learned this the hard way—those cookies need a searing start. Heat your cast iron on medium-high until a drop of water sizzles violently (about 5 minutes), or the edges won’t crisp properly. No, your kitchen won’t smell like a campfire—it’ll smell like success.
- Mix Peanut Butter Until Smooth: Lumpy peanut butter = chewy, uneven cookies. Beat it with the brown sugar and egg until the mixture is glossy and homogeneous, like a thick, rich mousse. I skip this step sometimes, and the cookies turn out dense and sad.
- Press Dough Gently, Not Forcefully: Overpacking the dough flattens the cookies too much, stealing their signature thickness. Use the back of a spoon to pat the dough into the skillet—just enough to hold its shape, like a pancake that’s still got a little bounce.
- Let Them Rest 10 Minutes: I know, you’re itching to dig in. But waiting for the cookies to cool slightly in the skillet (even just 5-10 minutes) keeps them from falling apart when you flip. Trust me, your first bite will be worth the patience.
Essential equipment for great cast iron skillet reese's peanut butter cookie
Cast Iron Skillet
The star of this recipe is your 10-inch cast iron skillet—it's non-negotiable for that perfect peanut-buttery crust and even heat distribution. Look for a well-seasoned skillet (like the Lodge Cast Iron Skillet) to prevent sticking.
If yours isn't perfectly seasoned, give it a quick pre-season with flaxseed oil or vegetable shortening before using. The cast iron's ability to retain heat ensures the edges crisp up beautifully while the center stays gooey. 🍳
Mixing Tools
For the batter, I recommend using a hand mixer (like the KitchenAid KHM5221CU) for smooth, lump-free peanut butter. If you don’t have one, a sturdy wooden spoon works—just mix vigorously. A rubber spatula is essential for folding in the chocolate chips and caramel bits without overmixing.
Pro tip: Use a large mixing bowl (at least 3-quart capacity) to avoid spills when adding the batter to the skillet.
Measuring Essentials
Precision matters here! Use a dry measuring cup for the brown sugar (pack it firmly) and a liquid measuring cup for the peanut butter (it’s thick!). A small offset spatula helps spread the batter evenly in the skillet.
For the powdered sugar dusting, a fine-mesh sieve ensures a smooth, even finish. I also keep a small bowl nearby to melt the butter—microwave-safe glass is my go-to for easy cleanup.
Baking Gear
A lightweight aluminum foil comes in handy for tenting the skillet if the top browns too quickly. And don’t forget a sharp serrated knife (like the Mercer Culinary Genesis) for clean slices—dip it in hot water for effortless cutting.
For serving, a large plate dusted with powdered sugar makes these cookies look like they’re from a bakery. Oh, and grab a parchment paper-lined baking sheet if you want to prep ahead—transfer the batter to the skillet just before baking.
Optional Upgrades
Want to take these cookies to the next level? A digital thermometer (like the Thermoworks Thermapen) helps monitor the skillet’s temperature for perfect edges. For extra crunch, toast the caramel bits in the skillet for 1-2 minutes before adding the batter.
And if you’re feeling fancy, a Reese’s Pieces press (or a rolling pin) helps distribute the chocolate evenly. Trust me, these small upgrades make a big difference! ✨
Nutrition facts
Frequently asked questions
Can I use crunchy peanut butter instead of creamy?
While creamy peanut butter gives that classic Reese's texture, you can use crunchy—but expect slightly different results. The crunchy bits won't blend smoothly, so your cookies will have extra peanut texture. For best results, blend crunchy peanut butter in a food processor first, then proceed with the recipe. The flavor will still be delicious, just with a different mouthfeel.
Why did my cookies spread too much in the cast iron?
This usually happens if your oven runs hot or the skillet wasn't properly preheated. Try reducing the oven temperature to 340°F next time and make sure the skillet is hot before adding batter. Also, check that your peanut butter isn't too warm—it should be at room temperature, not melted. A ½-inch thick layer is ideal for proper baking.
How do I store these cookies for maximum freshness?
Store them in an airtight container at room temperature for up to 3 days, or freeze for 1 month. The cast iron keeps them warm for 10-15 minutes after baking, so serve them fresh from the pan when possible. For freezing, slice first, then layer with parchment paper between each layer to prevent sticking.
Can I make these cookies without caramel bits?
Replace the caramel bits with ½ cup chopped pecans or an extra ½ cup chocolate chips for a different texture. The recipe still works beautifully—just adjust the sweetness to taste. If you prefer a smoother cookie, simply omit them entirely and add 1 teaspoon more vanilla extract for extra flavor.
What's the best way to slice these cookies?
Use a sharp serrated knife dipped in hot water for clean cuts. This prevents crumbling and gives you perfect wedges. For extra precision, chill the cookies for 10 minutes first—they'll hold their shape better. Serve immediately for the gooiest texture, or let them cool completely for easier slicing.